polio polio

Measles, the reorganization of the World Health Organization and the Zika virus could all make global health headlines in 2016. Rich Pedroncelli, Raphael Satter, Felipe Dana/AP hide caption

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Rich Pedroncelli, Raphael Satter, Felipe Dana/AP

Ukrainian deputy minister of health Igor Pereginets holds a 2-year-old getting a polio vaccination in Kiev on October 21 — part of a campaign launched after two cases were reported in September. Genya Savilov/AFP/Getty Images hide caption

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Genya Savilov/AFP/Getty Images

April 1959: Bottles containing the polio vaccine. M. McKeown/Getty Images hide caption

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M. McKeown/Getty Images

The Oral Polio Vaccine Can Go 'Feral,' But WHO Vows to Tame It

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Alyson Hurt/NPR

Next Year Could Mark The End Of Polio

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Two polio cases have been reported in Ukraine, where some parents are fearful of vaccinations. Above: A child receives the diphtheria, whooping cough and tetanus vaccine in a children's hospital in Kiev. Sergei Chuzavkov/AP hide caption

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Sergei Chuzavkov/AP

These two Portuguese language posters are pro-inoculation. The one at left, produced in 1977, says, "Vaccinate and protect the children." The one at right, from '87, sends a similar message, noting that vaccination offers an opportunity for every youngster. National Library of Medicine hide caption

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National Library of Medicine

A child is vaccinated in Makadara Health Clinic, Nairobi, Kenya. Greg Warner/NPR hide caption

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Greg Warner/NPR

Catholic Bishops In Kenya Call For A Boycott Of Polio Vaccines

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At the health clinic in Minjibir, Nigeria, a child is immunized for polio. David Gilkey/NPR hide caption

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David Gilkey/NPR

Polio Is Active In Only 3 Countries. Soon It Could Be Down To 2

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